The Washer, Plain is the lowest priced item on this 17 Frame schematic.
The Nut. Self-locking is the most widely applied product in the MT125 2015 5D7C EUROPE 1P5D7-300E3 17 FRAME ( three times ).
A sample from the products for the 17 Frame include: Stay Relay, Holder Wire, Bolt Hex, Nut. Self-locking.